org.apache.flink.table.types.inference

类 TypeTransformations

java.lang.Object

org.apache.flink.table.types.inference.TypeTransformations

@Internal
public final class TypeTransformations
extends Object

Transformations for transforming one data type to another.

另请参阅:

TypeTransformation

字段概要

字段

限定符和类型	字段和说明
static TypeTransformation	TO_INTERNAL_CLASS Transformation that uses internal data structures for all conversion classes.

方法概要

限定符和类型	方法和说明
static TypeTransformation	legacyDecimalToDefaultDecimal() Returns a type transformation that transforms legacy decimal data type to DECIMAL(38, 18).
static TypeTransformation	legacyRawToTypeInfoRaw() Returns a type transformation that transforms LEGACY('RAW', ...) type to the RAW(..., ?)
static TypeTransformation	timeToSqlTypes() Returns a type transformation that transforms data type to a new data type whose conversion class is Timestamp/Time/Date if the original data type is TIMESTAMP/TIME/DATE.
static TypeTransformation	toNullable() Returns a type transformation that transforms data type to nullable data type but keeps other information unchanged.

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

字段详细资料

TO_INTERNAL_CLASS

public static final TypeTransformation TO_INTERNAL_CLASS

Transformation that uses internal data structures for all conversion classes.

方法详细资料

timeToSqlTypes

public static TypeTransformation timeToSqlTypes()

Returns a type transformation that transforms data type to a new data type whose conversion class is Timestamp/Time/Date if the original data type is TIMESTAMP/TIME/DATE.

legacyDecimalToDefaultDecimal

public static TypeTransformation legacyDecimalToDefaultDecimal()

Returns a type transformation that transforms legacy decimal data type to DECIMAL(38, 18).

legacyRawToTypeInfoRaw

public static TypeTransformation legacyRawToTypeInfoRaw()

Returns a type transformation that transforms LEGACY('RAW', ...) type to the RAW(..., ?) type.

toNullable

public static TypeTransformation toNullable()

Returns a type transformation that transforms data type to nullable data type but keeps other information unchanged.